223-precisION: 本机质谱揭示隐藏蛋白修饰 episode artwork

EPISODE · Nov 11, 2025 · 38 MIN

223-precisION: 本机质谱揭示隐藏蛋白修饰

from 聊聊Sci

该文章介绍了 precise and accurate Identification Of Native proteoforms (precisION),这是一款开源软件工具包,旨在克服 天然自上而下质谱(nTDMS) 在识别和量化复杂蛋白质复合物中隐藏的蛋白质修饰方面的挑战。通过利用稳健的、数据驱动的 片段级开放搜索 和 机器学习算法 来过滤噪声,precisION 能够检测到现有方法难以发现的 低丰度或未表征的翻译后修饰(PTMs)。作者们通过应用 precisION 分析了四种具有治疗意义的蛋白质——PDE6、ACE2、骨桥蛋白(SPP1)和GABA转运蛋白(GAT1),成功揭示了 未记录的磷酸化、糖基化和脂化 等多样化的蛋白质异构体。最终,precisION 旨在赋能科学界,推动 整合结构生物学、分子病理学和药物开发 的进步。References: Bennett J L, El-Baba T J, Zouboulis K C, et al. Uncovering hidden protein modifications with native top-down mass spectrometry[J]. Nature Methods, 2025: 1-11.前往小宇宙评论区与主播互动

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223-precisION: 本机质谱揭示隐藏蛋白修饰

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